Surf Forecasts:
Lakey Pipe surf forecast from 17 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 11PM (local time) - 10ft (3.0m), 17s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 10ft (3.0m), 17s period, SW swell with 4,607 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 4.5ft (1.4m), 14s period with SW swell.
Best Forecast Surf Conditions for Lakey Pipe this week:
The surf forecast for Lakey Pipe over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 11PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.4m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lakey Pipe in the next 16 days are 3.0m 17s and forecast to arrive on Wednesday (Aug 19) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Saturday (Aug 22) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 17th Aug) | 4.5ft (1.4m) 14s |
| Best Surf | 11PM (Wed 19th Aug) | 10ft (3.0m) 17s |
| Most Powerful | 11PM (Wed 19th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Lakey Pipe over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what’s on the cards for Lakey Pipe over the next couple of weeks. We’ve got a solid run of swell, so let’s get into it.
The pattern is setting up real nice with a long fetch of SW groundswell. The first real action is kicking off on Monday afternoon, the 17th of August. It's not huge, coming in at 5ft from the SSW with a 14-second period, and that cross-off breeze from the SE is keeping things clean. The water is sitting at 80°, which is pretty normal for this time of year. The combined energy is a moderate 1029, but it’s a promising start.
Tuesday the 18th sees the swell settle a touch to 4ft in the morning, but the period jumps to a very long 16 seconds. This is pure groundswell. For a reef like Lakey Pipe, that kind of period is magic. The energy is strong (1897). Afternoon bumps up to 6ft from the SW with that same long 16-second period, and the wind goes light from the SE at just 6 mph. This afternoon session is clean as a whistle.
Now, Wednesday the 19th is where it starts getting serious. Wednesday morning has 8ft of SW swell with a 19-second period. That is a proper groundswell, the combined energy is a whopping 3878. The wind is a light cross-off. This is expert territory at that size, but the wave quality will be insane. Wednesday afternoon it holds at 8ft, but the wind picks up to a moderate breeze.
Thursday the 20th morning is the stand-out of the first week. We’ve got 10ft of SW swell—that’s big and powerful (energy is 4190). The wind is light from the ESE, keeping it glassy. This is not a day for the faint of heart; this is one for the experienced crew only. The afternoon drops back to 8ft but with a bit more breeze.
The weekend (22nd-23rd August) settles into a consistent 6ft to 8ft range with those long-period SW swells. The wind stays favorable, a gentle cross-off breeze. It's consistently clean and offering excellent conditions for those who can handle it.
Looking further out, the second week keeps the goods coming. Monday the 24th through to the end of the month holds steady with nice 5ft to 7ft SW swell. The period stays in the sweet spot of 15-16 seconds. Winds remain light and cross-off for most of it. The real cherry on top is Monday the 31st of August and Tuesday the 1st of September. The 31st has a 6ft swell from the SW with a massive 21-second period and a combined energy of 3974. The 1st of September morning bumps back up to 8ft with an 18-second period and a strong energy of 4689. These ones are a little further out, so less certain, but the models are looking mouth-watering.
Overall, the pick of the entire window is the morning of Thursday, 20th August for the experienced surfer looking for size, but for the best combination of size, period, and light winds, the afternoon of Tuesday the 18th is a real standout. Lakey Pipe will be busy—crowds are often here—but when it’s this good, it’s worth the company.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Tue morning, min 23°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Fri afternoon, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 14 | SSW 16 | SW 16 | SSW 16 | SW 19 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph | |||||||||||||||||||
690 | 726 | 1693 | 1953 | 3604 | 3839 | 4484 | 4190 | 3376 | 2545 | 2102 | 3146 | 2928 | 2786 | 2550 | 1989 | 1821 | 1409 | 1111 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 1:09AM2.95m | 1:23PM2.47m | 1:38AM2.82m | 1:54PM2.20m | 2:06AM2.64m | 2:24PM1.94m | 2:36AM2.43m | 3:00PM1.67m | 3:16AM2.22m | 4:44PM1.45m | 4:45AM2.03m | 10:07PM1.61m | |||||||
Low Tide | 7:27AM0.45m | 7:19PM0.55m | 8:02AM0.61m | 7:43PM0.75m | 8:39AM0.81m | 8:04PM0.96m | 9:26AM1.02m | 8:22PM1.18m | 10:48AM1.19m | 8:25PM1.38m | 2:10PM1.14m | 11:41PM1.60m | |||||||
— | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | |
6:05 | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 28 | 28 | 24 | 28 | 28 | 25 | 28 | 28 | 24 | 28 | 29 | 24 | 27 | 28 | 24 | 27 | 27 | 24 |
Feels °C | 26 | 29 | 28 | 26 | 29 | 29 | 26 | 30 | 29 | 26 | 29 | 29 | 26 | 28 | 28 | 26 | 28 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 16 | SW 16 | SSW 16 | SW 19 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
690 | 726 | 1693 | 1953 | 3604 | 3839 | 4484 | 4190 | 3376 | 2545 | 2102 | 3146 | 2928 | 2786 | 2550 | 1989 | 1821 | 1409 | 1111 | |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 13 | SW 21 | SW 20 | SSE 7 | — | — | — | — | SSE 7 | SSE 6 | W 19 | SSE 6 | — | — | SSW 24 | SSW 21 | SSW 20 | SSW 18 |
214 | 444 | 756 | 881 | 18 | — | — | — | — | 41 | 6 | 7 | 51 | — | — | 54 | 180 | 336 | 651 | |
Swell 3 Height (m) Direction Period (s) | SW 23 | SW 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 24 | — | — | SSE 6 |
264 | 658 | — | — | — | — | — | — | — | — | — | — | — | — | — | 54 | — | — | 33 | |
Wind waves Height (m) Direction Period (s) | E 4 | ESE 5 | ESE 5 | E 4 | ESE 5 | ESE 5 | SE 7 | ESE 7 | ESE 4 | E 5 | ESE 5 | SE 5 | ESE 6 | — | — | — | — | — | E 5 |
7 | 56 | 28 | 9 | 29 | 35 | 59 | 84 | 26 | 32 | 36 | 23 | 93 | — | — | — | — | — | 26 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 0 | 0 | 173 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Sumbawa | |||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Lakey Pipe Surf forecast
The above surf forecast table for Lakey Pipe provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lakey Pipe can be found by selecting the local surf guide option on the grey menu. Our Lakey Pipe surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Lakey Pipe) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Lakey Pipe may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Sumbawa? If you are looking for accommodation near Lakai Pipe, camping, hotels and holiday cottages in Sumbawa, consider staying in Bima which is 52 km (32 miles) away. Alternatively, find information about places to stay and car hire in Raba which is 56 km (35 miles) away











